Final answer:
The Multielement Design is another name for the alternating treatment design. It is preferred when assessing various treatment components.
Step-by-step explanation:
The alternating treatment design is also known as the Multielement Design. This design is preferred when assessing various treatment components. It allows researchers to compare and evaluate the effects of different interventions simultaneously by alternating between them. For example, if researchers want to test two different teaching methods, they can use the alternating treatment design to assess the effectiveness of each method by alternating between them in a random order.